/**
 * This file is part of Port@l
 * Port@l 3.0 - Portal Engine and Management System
 * Copyright (C) 2010  Isotrol, SA.  http://www.isotrol.com
 *
 * Port@l is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Port@l is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Port@l.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.isotrol.impe3.palette.content.loader;


import com.isotrol.impe3.api.ContentKey;
import com.isotrol.impe3.api.component.Inject;
import com.isotrol.impe3.api.component.RequiresLink;
import com.isotrol.impe3.api.content.Content;
import com.isotrol.impe3.api.content.ContentCriteria;


/**
 * Reads a content by key from the content loader.
 * @author Andres Rodriguez
 */
@RequiresLink(ContentKey.class)
public class ByKeyComponent extends AbstractContentComponent {
	/** Content key. */
	private ContentKey contentKey;

	/**
	 * Constructor.
	 */
	public ByKeyComponent() {
	}

	@Inject
	public void setContentKey(ContentKey contentKey) {
		this.contentKey = contentKey;
	}

	@Override
	Content loadContent(ContentCriteria criteria) {
		if (contentKey != null) {
			return criteria.getContent(contentKey);
		}
		return null;
	}

}
